top of page

Principle Source Publisher

IntlSoSci is the short name for the International Solidarity of Scientists. Principle Source Publisher predated IntlSoSci by a few decades but started with publishing science titles from George Stanciu and also continues to publish educational and scientific titles. Currently, all Principle Source Publisher books are available on Amazon.com. Bulk orders at a discount can be made by contacting PSP by email. 

Contact us

bottom of page